| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 47.1 | 48.7 | 49.3 | 55.4 | 64.4 | 73.7 | 81.7 | 80.8 | 74.3 | 65.5 | 53.0 | 47.6 | 61.8 |
| Highest Mean Max. Temperature (F) | 56.1 | 57.1 | 58.0 | 64.9 | 71.8 | 82.9 | 90.3 | 87.2 | 81.9 | 75.5 | 63.6 | 56.8 | 65.0 |
| Year Highest Occurred | 1961 | 1977 | 1972 | 1962 | 1966 | 1981 | 1976 | 1967 | 1974 | 1965 | 1976 | 1976 | 1976 |
| Lowest Mean Max. Temperature (F) | 40.9 | 39.4 | 43.1 | 40.2 | 53.4 | 67.6 | 72.0 | 74.6 | 61.4 | 57.2 | 44.4 | 38.7 | 56.5 |
| Year Lowest Occurred | 1982 | 1969 | 1973 | 1967 | 1977 | 1967 | 1983 | 1983 | 1986 | 1984 | 1984 | 1971 | 1983 |
| Mean Temperature (F) | 36.5 | 37.6 | 38.4 | 43.2 | 50.9 | 59.1 | 65.8 | 65.2 | 59.5 | 51.5 | 41.6 | 36.8 | 48.8 |
| Highest Mean Temperature (F) | 42.6 | 44.2 | 44.6 | 49.5 | 56.6 | 65.4 | 70.4 | 70.6 | 65.2 | 57.7 | 48.9 | 43.6 | 51.0 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1966 | 1966 | 1981 | 1976 | 1967 | 1974 | 1965 | 1976 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 31.8 | 30.9 | 33.8 | 31.6 | 43.4 | 54.9 | 57.8 | 61.1 | 50.1 | 45.4 | 36.2 | 29.6 | 46.2 |
| Year Lowest Occurred | 1989 | 1969 | 1973 | 1967 | 1977 | 1967 | 1983 | 1989 | 1986 | 1984 | 1984 | 1971 | 1983 |
| Mean Min. Temperature (F) | 25.8 | 26.3 | 27.5 | 30.9 | 37.3 | 44.5 | 49.9 | 49.5 | 44.7 | 37.5 | 30.2 | 25.9 | 35.8 |
| Highest Mean Min. Temperature (F) | 32.7 | 31.6 | 33.7 | 35.1 | 41.3 | 48.7 | 54.1 | 53.9 | 51.6 | 42.4 | 34.4 | 32.0 | 37.6 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1987 | 1966 | 1961 | 1985 | 1967 | 1975 | 1987 | 1967 | 1977 | 1981 |
| Lowest Mean Min. Temperature (F) | 21.1 | 20.5 | 23.0 | 23.0 | 32.5 | 40.0 | 43.6 | 45.8 | 38.8 | 32.9 | 26.5 | 20.0 | 34.2 |
| Year Lowest Occurred | 1989 | 1990 | 1962 | 1967 | 1990 | 1980 | 1983 | 1968 | 1986 | 1971 | 1964 | 1985 | 1971 |
| Mean Precipitation (in.) | 8.06 | 7.28 | 6.51 | 3.69 | 1.40 | 0.66 | 0.12 | 0.14 | 0.86 | 2.01 | 5.96 | 5.90 | 42.59 |
| Highest Precipitation (in.) | 32.88 | 29.50 | 16.46 | 13.94 | 4.65 | 3.08 | 0.75 | 0.52 | 3.95 | 6.65 | 19.44 | 17.85 | 79.82 |
| Year Highest Occurred | 1969 | 1986 | 1967 | 1967 | 1977 | 1982 | 1974 | 1972 | 1989 | 1982 | 1965 | 1964 | 1969 |
| Lowest Precipitation (in.) | 0.10 | 0.03 | 0.00 | 0.19 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 13.65 |
| Year Lowest Occurred | 1984 | 1964 | 1972 | 1977 | 1970 | 1986 | 1989 | 1989 | 1988 | 1988 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 884. | 767. | 825. | 654. | 437. | 205. | 86. | 77. | 201. | 426. | 702. | 874. | 6138. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 28. | 111. | 83. | 36. | 7. | 0. | 0. | 265. |